Improvement in machinery for manufacturing sheet-metal boxes



v I 3 Sheets-Sheet 1. 'W. WILSON, Jr. MACHINERY FOR MANUFACTURING SHEETMETAL BOXES.

. N 51,667; Patented Dec. 19, 1865.

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"No. 51,667 Patented Dec. 19, 1865.

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E .W. WILSON, Jr. MACHINERY FOR MANUFACTURING SHEET METAL BOXES.

N0. 51,667. Patented Dec. 19, 1865.

UNITED STATES PATENT QFFICE.

AND CHARLES GREEN, OF SAME PLACE IMPROVEMENT lN MACHINERY FORMANUFACTURING SHEET-METAL BOXES.

Specification forming part of Letters Patent N 0. 51,687, dated December19, 1865.

To all whom it may concern.-

Be it known that I, WILLIAM WILSON, J r., of Wilmington,New Castlecounty, State of Delaware, have invented a new and Improved Machine forManufacturing Sheet-Metal Boxes; and I do hereby declare that thefollowingis a full, clear, and] exact description thereof, which willenable others skilled in theart to make and use the same, referencebeing had to the accompanying drawings, forming part ofthis-specification, in which--- Figure 1, Sheet No. 1, is a plan or topview of my invention. Fig. 2, Sheet No.2, is a rear elevation of thesame. Fig. 3, Sheet No. 3, is transverse vertical section of the same,taken in the line a; as, Fig. 1; Figs. 4, 5, and 6, diagrams showing thejoints by which the heads or ends of the box are secured to the body ormain portion Fig. 7, a view of the box coir strncted according to myinvention.

Similar letters of reference indicate like parts.

This invention relates to a new and improved machine for manufacturingsheet-metal boxes which are of oval or elliptical form in their transverse section and itconsists in a novel means employed for attaching orsecuring the ends or heads of the boxes in their bodies or mainportions, as hereinafter fully shown and described, whereby the work maybe expeditiouslydone, and in a perfect manner.

A represents a horizontal plate supported at a suitable height by legsa, and having four vertical frames, B, attached to it, inwhich thebearings of three shafts, O D D, are placed, the lower shaft, (3,extending through the four frames, but the upper two, I) D, extendingeach through twoframes only, as shown in Figs. 1 and 2. The uppershafts, D D, are in line with each other and parallel with the lowershaft 0, and they extend a short distance beyond the inner frames, B,and have each a toothed wheel, E, keyed on them at their inner ends.There are also keyed on the shafts D D two wheels, F F, which gear intowheels G G on the shaft 0, the power being applied to the latter shaft,which drives the two upper ones, D D. (See Fig. 2.)

H H represent two plates comprising rather more than a semi-circle inshape. These plates have avertical position, and one of them, H,

is attached to the inner end of a fixed horizontal bar, I, while theother plate, H", is attached to a horizontal sliding bar, J, which maybe operated by means of a foot-treadle, K, andlever-connections L. (SeeFig. 2.)

The two plates H H, at the points coinciding with circles of which theplates form a part,

have small cylindrical projections M attached to them, on which ovalrims N are placed corresponding in size to the ends of the box to beoperated upon. These oval rims are provided with teeth a at theirexterior, near their outer ends, which teeth, when the machine is inoperation, gear into the wheels E E.

0 represents aframe provided with ahandle, P, and connected at its frontedge by hinges b with the framin g of the machine.

The frame 0 has a bar, Q, attached to it transversely,and provided withoblique or inclined sides, on which two bars, R R, are fittedand allowedto slide freely, said bars beingoperated or adjusted by levers S S, asshown in Fig. 1.

The bars R B have each a roller, T, attached to them at their outerends. have beveled peripheries, as shown at c in Figs. 1 and 2.

The machine is used as follows: The body U of the box is made ofelliptical or. oval form in its transverse section in the usual manner,and the heads or ends V are out in a correspondin g form and swayed soas to have a lip or flange, d, all around its edge, said lip or flan gebeing formed by depressingor forminga groove, 0, in the ends or headsnear their edges. (See Fig. 4.) The heads or ends V are applied orfitted to the ends of the body U of the box,

the rims N being fitted in the grooves e of the heads or ends V, and theends are secured in U and between the rims N by adjusting the slidingbar J. The box with its ends or heads being thus firmly clampedtogether, the shaft 0 is rotated and motion communicated therefrom tothe shafts D D, from which motion is communicated to the box through themedium 1 of the wheels E and the toothed rims N, the latter beingallowed to slide on theprojections M, so that they may accommodatethemselves to the wheels E. 'VVhile the box is being thus rotated theoperator adjusts the frame 0 so as to bring the rollers T within theline of the These rollers edges of the heads or ends V of the box, andby operating the levers S S the bars 1% R and rollers T T are movedlaterally and made to bend the lips or flanges d over the sides of thebody U, as shown in Fig. 5. The operator then, by raising the handle Pof the frame U, presses the rollers against the bent flanges or lips dand closes them tightly over the ends of U, and the work is completed.

Thus by this simple arrangement I am enabled to secure the heads or endsof the box to its body very expeditiously and in a perfect.

manner.

I claim as new and desire to secure by Letters Patent- 1. The toothedrims N, in connection with the rollers T, attached to sliding bars,which

